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AssigneesRikagaku Kenkyusho, Riken Vitamin Oil Co., Ltd., Hodogaya Chemical Co., Ltd.
InventorsTomomasa Misato, Yasuo Homma, Yutaka Arimoto, Tohoru Hidaka, Mitsuhara Yuda
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It was found that sodium bicarbonate has a fungicidal activity and at the same time that the compound has a defect as a fungicide in that it is inferior in adhesiveness and spreadability and for this reason cannot be used alone as a fungicide. It is further found that an agricultural and horticultural fungicide having lasting fungicidal activity against plant diseases in a control value of over 90% can be obtained by using sodium bicarbonate in combination with a surfactant, particularly a food emulsifier, and further that the combination shows extensive effect in preventing fruit storage diseases. As all components of the combination are substances approved as food additives throughout the world, the fungicide does not cause pollution or present any hazard to human health.
An agricultural and horticultural fungicide and fruit storage disease preventing composition, which comprises a fungicidally effective amount of sodium bicarbonate, a food emulsifier and 0-90% based on the total weight of the composition of at least one food compatible carrier, wherein said food emulsifier is at least one member selected from the group consisting of fatty acid glycerol esters, fatty acid sucrose esters, fatty acid sorbitan esters and derivatives thereof, fatty acid propyleneglycol esters and lecithin and wherein the mixing ratio of sodium bicarbonate to said food emulsifier is 1:1 to 20:1 by weight.
A process for producing an agricultural and horticultural fungicide and fruit storage disease preventing agent, which comprises dispersing at least one food emulsifier and at least one hydrophilic colloidal substance in warm water, drying the dispersion to form a powder, mixing said powder with a fungicidally effective amount of sodium bicarbonate, and 0-90% based on the total weight of the agent of at least one food compatible carrier, wherein the food emulsifier is at least one member selected from the group consisting of fatty acid glycerol esters, fatty acid sucrose esters, fatty acid sorbitan esters and de4ivatives thereof, fatty acid propyleneglycol esters and lecithin and wherein said sodium bicarbonate and food emulsifier are used in a ratio by weight of 1:1 to 20:1.
A process for producing an agricultural and fruit storage disease preventing agent, which consists of dissolving a food emulsifier into a solvent which is a member selected from the group consisting of alcohol, propyleneglycol, glycerol and sorbitol, and spraying or mixing the solution on sodium bicarbonate pwoder in an effective amount of the latter to permit the absorption of the solution by the sodium bicarbonate powder and mixing the resulting powder with 0-90% of a food compatible carrier, wherein the food emulsifier is at least one member selected from the group consisting of fatty acid glycerol esters, fatty acid sucrose esters, fatty acid sorbitan esters and derivatives thereof, fatty acid propyleneglycol esters and lecithin and wherein the sodium bicarbonate and food emulsifier are used in a ratio by weight of 1:1 and 20:1.
Dependencies are inferred from the claim text.